如何通过调整缩放级别将所有坐标包含在MapBox中？

Question

我使用的代码是：

let bounds = MGLCoordinateBounds(
    sw: CLLocationCoordinate2D(latitude: 40.7115, longitude: 10.3725),
    ne: CLLocationCoordinate2D(latitude: 40.7318, longitude: 10.4222))
    mapView.setVisibleCoordinateBounds(bounds, animated: false)

我有3个注释，我想通过调整缩放级别在mapBox中看到3个注释。请帮我找出来。

Answer 1

MGLMapView上有一种方法可以使用：

func showAllAnnotations() {
    guard let annotations = mapView.annotations else { return }

    // Either this...
    mapView.showAnnotations(annotations, edgePadding: UIEdgeInsets(top: 40, left: 35, bottom: 35, right: 35), animated: true)
    // or this.
    mapView.showAnnotations(annotations, animated: true)
}